- home
- Mechanics
- Kinematics
- Dynamics I: Force
- Energy
- Dynamics II: Momentum
- Rotational Motion
- Planetary Motion
- Periodic Motion
- Fluids
- Thermal Physics
- Heat & Temperature
- Calorimetry
- Heat Transfer
- Thermodynamics
- Waves & Optics
- Wave Phenomena
- Sound
- Physical Optics
- Geometric Optics
- Electricity & Magnetism
- Electrostatics
- Electrostatic Applications
- Electric Current
- DC Circuits
- Magnetostatics
- Magnetodynamics
- AC Circuits
- Electromagnetic Waves
- Modern Physics
- Relativity
- Quanta
- Wave Mechanics
- Nuclear Physics
- Particle Physics
- Appendices
- Units
- Measurement
- Graphs
- Vectors
- Reference
- about
- news
- shop
- contact
- more
-
✚ share
-
Elasticity
Summary
- compression and extension
- stress
- Tensile stress is the normal force per area (F/A) that causes an object to increase in length.
- Compressive stress is the normal force per area (F/A) that causes an object to decrease in length.
- strain
- Tensile strain is the fractional change in length of an object due to a tensile strain(Δℓ/ℓ0).
- Compressive strain is the fractional change in length of an object due to a compressive strain(Δℓ/ℓ0).
- modulus
- Young's modulus (Y) is the ratio of tensile stress to tensile strain or compressive stress to compressive strain
- shear
